Lot 122

A Diamond, Platinum and Gold Ring, Cavelti

Set with an oval diamond weighing 5.09 carats, the tapering shoulders set with baguette-cut diamonds, mounted in platinum and 18K gold, signed Cavelti
With report 6214181847 dated 2 October 2020 from the Gemological Institute of America stating that the diamond is E colour, VS1 clarity

Estimate: $120,000-$140,000

Lot 121

A Diamond, Platinum and White Gold Ring

Set with a radiant-cut diamond weighing 6.13 carats, the gallery accented by round diamonds, mounted in platinum and 19k white gold
With report AGS 008468801 dated 9 April 2007 from the American Gem Society Laboratories stating E colour, VS1 clarity
With Canadian Diamond Certificate of Origin

Estimate: $130,000-$150,000

Lot 317

A Pair of Diamond and Platinum Ear Studs

Set with one round diamond weighing 2.31 carats, the other round diamond weighing 2.27 carats, mounted in platinum
With report 5211184872 dated 9 October 2020 from the Gemological Institute of America stating that the diamond weighing 2.31 carats is G colour, VVS2 clarity
With report 6213184869 dated 6 October 2020 from the Gemological Institute of America stating that the diamond weighing 2.27 carats is H colour, VVS2 clarity

Estimate: $35,000-$40,000

Lot 120

A Diamond, Platinum and Gold Pendant/Brooch

Centering an oval diamond weighing 5.14 carats, amid a broad bombé frame decorated with pavé-set diamonds and a channel of baguette-cut diamonds, the diamonds totalling approximately 7.50 carats, mounted in platinum and 18k gold, signed Cavelti
With report 2215181851 dated 2 October 2020 from the Gemological Institute of America stating that the diamond is F colour, VS2 clarity

Estimate: $90,000-$110,000

Lot 314

A Diamond Solitaire and White Gold Pendant

Set with an emerald-cut diamond weighing 3.04 carats, mounted in 14k white gold
With report 1269941 dated 13 May 1981 from the Gemological Institute of America stating that the diamond is E colour, VVS2 clarity

Estimate: $40,000-$50,000

Lot 148

A Coloured Diamond and Platinum ‘Soleste’ Ring, Tiffany & Co.

Set with a cushion-shaped fancy vivid yellow diamond weighing 1.09 carats, the double halo surround and slender shoulders accented by round diamonds, mounted in platinum, signed Tiffany & Co., and numbered 32314902, with original box and papers
With diamond certificate 32314902/O07230221 by Tiffany & Co., stating that the diamond is fancy vivid yellow, SI1 clarity

Estimate: $10,000-$14,000

Lot 382

A Diamond and Platinum Ring

The vertical Toi et Moi design set with a pair of round diamonds weighing 3.06 carats, amid geometric motifs of round and baguette-cut diamonds, mounted in platinum

Estimate: $6,000-$8,000

Lot 313

A Diamond Solitaire and White Gold Ring

Set with a round diamond weighing 7.27 carats, mounted in 14k white gold

Estimate: $30,000-$35,000

Lot 118

A Pair of Diamond, Platinum and Gold Ear Clips

Set with a pair of oval diamonds weighing 6.23 carats, framed by pavé-set diamonds and baguette-cut diamond channels, the diamonds totalling approximately 4.00 carats, mounted in platinum and 18k gold, signed Cavelti, with original box
With report 5211184901 dated 6 October 2020 from the Gemological Institute of America stating that the diamond weighing 3.01 carats is D colour, VS2 clarity
With report 1216184900 dated 8 October 2020 from the Gemological Institute of America stating that the diamond weighing 3.22 carats is D colour, VS2 clarity

Estimate: $60,000-$80,000

Lot 316

A Three-Stone Diamond and Platinum Ring, Birks

Centering a round diamond weighing approximately 3.70 carats, between an old European-cut diamond weighing approximately 2.25 carats, and an old mine-cut diamond weighing 2.13 carats, mounted in platinum

Estimate: $30,000-$40,000

Lot 116

A Diamond and Platinum Ring, Cavelti

Centering a pear-shaped diamond weighing 2.62 carats, flanked by a pair of smaller pear-shaped diamonds, maker’s mark for Cavelti, mounted in platinum
With report 5212184898 dated 6 October 2020 from the Gemological Institute of America stating that the diamond is F colour, VS1

Estimate: $18,000-$22,000

Lot 319

A Diamond and Platinum Ring

Set with a round diamond weighing approximately 2.65 carats, flanked on either side by a baguette-cut diamond, mounted in platinum

Estimate: $14,000-$18,000

Lot 378

A Diamond and White Gold Ring

Set with a round diamond weighing approximately 2.20 carats, the frame, elaborate shoulders and double gallery decorated with round diamonds weighing approximately 1.30 carats, mounted in 18k white gold

Estimate: $7,000-$10,000

Lot 315

An Unmounted Diamond

The round diamond measuring 13.64 mm by 13.79 mm by 7.80 mm and weighing 8.62 carats

Estimate: $60,000-$80,000

Lot 265

A Diamond and Platinum Ballerina Ring

Set with an oval diamond weighing 2.44 carats, amid an undulating surround of graduated baguette-cut diamonds weighing approximately 1.75 carats, mounted in platinum
With report 2211128251 dated 11 September 2020 from the Gemological Institute of America stating that the diamond is J colour, VS1 clarity; and a working diagram indicating that the clarity of the diamond is potentially internally flawless

Estimate: $10,000-$12,000

Lot 11

A Coloured Diamond and Platinum Ring

The broad top centering a radiant-cut fancy intense yellow diamond weighing 1.73 carats, the elaborate frame set with round and round yellow diamonds, to diamond-set split shoulders, mounted in platinum
With report 14613935 dated 12 October 2005 from the Gemological Institute of America stating fancy intense yellow, natural colour, VS2 clarity

Estimate: $2,500-$3,000

Lot 178

A Diamond, Platinum and Two-Tone Gold Ring and a Band, by Claude Thibaudeau

The overlapping curved bands set with a round diamond weighing 1.70 carats, accented by small round diamonds; together with a fitted band further set with small round diamonds, mounted in platinum and 18k pink gold
With information available online from the Gemological Institute of America referencing report number 15715910 dated 24 January 2007 stating that the diamond is F colour, VS1 clarity

Estimate: $12,000-$16,000